Ladder-raiser.



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Applicationmea November 17, 191e.' serial No. 131,915.

To all whom t mag/concern f Be it known that I, OWEN Rf HUGHES,l a citizen of the UnitedStates, residingatv Bangor, in the county 'of Northampton and State of Pennsylvania, have invented cersuperposed relation.

tain new and useful Improvements inV Ladder-Baisers,- lof whichthe following isa specification. Y

This invention relates to ladder raisers, and more particularly to'means yfor securing a ladder to a rope or cable for raising the same.

@ne ofi the mainvobjects of theV invention is to provide a deviceof'the character stated of simple construction and operation which, when not in use, may be folded so as `to occupy a minimum" of space.y A. further'object is Vto provide a device having adjustable securing means which may be adjusted.

to receive the rungs of ladders' of different types spaced different distances apart.l Further objects will appearfrom the `detail description.

In the drawings Figure 1 is a side view of av ladder-raising device constructed in accordance with my invention,

Fig. 2 is a front view of the same,

Fig. 3 is a front view of a modified form of the device, and

Fig. 4 is a side view of the same.l

A central supporting strip or-rnemberlv is provided with an aperture yat its upper end which receives hook 2 secured to a rope 3 passed over a pulley 4 mounted in a block The block 5 is provided with aneye 6 5. which receives a double hook 7 the upper end of which is passed through an eye bolt 8 secured in a beam 9 which may be secured 3 in the cable 10, of a house, barn or other building. By means of the rope 3, the free end of which may be secured in any suitable manner, the member 1 and the.- ladder secured thereto, in a manner to be later described, may be adjusted as described.

Two links 11 and 12 have their inner'ends pivotally secured to member 1 intermediate the ends thereof by a pivot bolt 13, these two links being mounted in overlapping or rlhe pivot bolt 13V is also passed through the lower end of a member 14 the upper end of which is secured in spaced relation to supporting member 1 by a spacing colla-r 15 and a bolt 16 passed v through the member 14 and collar and member 1. A lower pair of links 17 and 18 are similarly' secured tothe supporting member 1 at their innerendsadjacent the lower end thereof. AThe outer -end of link 11 is pivotally secured to the upper end of a supporting arm19' byl means "of a pivot bolt 20 `passed'through''the same "and arm`A 19,`this bolt12 Obeing`also'passed through a bracing bar 211similarto `member 14 the 'lower end 'of whichis secured in spacedfr'elation to arm 19 bymeansof a'sp'acing 'collar v22 and a securing bolt 23 passed'through the same Specification of Letterslaten'tf i Patentedl'ell); 2"?, 1917'. l i' and arm 19, the head'or outer"end of thisv bolt being countersunkinto .the arm 19. The outerfend of link 17 is similarly'secured to arm 19Ibyineans' of a bolt 24 the inner end of which fis also countersunk in arm 19,-V

bracingor' reinforcing elements 25 vbeing secured-'above the outer end oflink` 17 and inV f' spaced relation' tonrm 19 by Ja spacing collar 26"'V inter osed betweenf'the same and member'25. he outer 'ends of links 12 and 18 are similarly secured tothe supportingV parallel with, and spaced arm 19n vwhich isV from`,'ar'm 19. Y

Adjacent the upper endof'each arm 19 and 19a is slidably mounted a securing clip 27 the upper end of which is arched outward to vprovide a receiving hook 28 for a ladder rung. Thel shank of each clip 27 1s provided with a central longitudinally eX- tending slot 29 through which is passed an adjusting screw 30. This screw is also passed through an aperture through arm 19 or 19a, and a wing nut 31 is threaded on to the screw in front ofthe clip 27. By means of the wing nut the clip may be secured in any desired longitudinal adjustment on` the supporting arm. The lower end portion of each arm 19 and 19vL is turnedoutward and upward v,to providey an integral hook 32 adapted to receive a ladder rung. A downwardly directed securingcl'ip 33 is mounted on each supporting arm adjacent the lower end thereof and is secured in adjustmentfbyY justed so as to accommodatel ladders of dif-V ferent types in which the rungs are spaced differently. By means of the clipsv the adjacent rungs of a ladder may be firmlyv se-. cured to the supporting arms, as indicated in Fig. 2 of the drawings, so that by raising the supporting member 1 as above described the ladder may be secured in any desired vertical adjustment.

`When the securing device is not in use the supporting,` arms 19 and 19'LL will move downward and inward toward each other so as to be in alinement with the central supporting member l and closely adjacent the lower end thereof, forming in this position an approximately rectangular bundle which will occupy but very little space. This folding of the securing device is permitted by the superposed or overlapping mounting of the links. Also, by providing two pairs of links, the supporting' arms are secured against free movement about their pivotal axes so as to be at all times supported in substantially a vertical position. When the device is in use, the clips L27 and 33, and the hooks 32, being in engagement with the adjacent rungs of the ladder, eec tually prevent movement of the supporting,` arms 19 and 19@ toward each other, thus holding the device in extended or operative position.

In the modified form of securing device shown in Figs. 3 and Il, the central supporting; member is replaced by an approximate V-shaped supporting' member 36. The ends of the arms of this member are pivotally secured to the upper ends of the supporting arms 37 by links 38. The lower end p0rtion of each arm 37 is turned outward and Copies of this patent may be obtained for upward to provide a-hook 39 which coperates with an adjustable clip 40 to receive -the rung of a ladder thus iirmly securing` the device t0 the same. The supporting arms 37 and main supporting member 36 are thus vflexibly connected so as to enable the arms to adjust themselves to the particular ladder in connection with which the device is used, thus insuring' a proper and accurate hang of the ladder.

`What I claim is:

In a device of the character described, the combination of a central supporting` member, an upper pair of superposed links pivotally secured 'thereto at their inner ends,

af lower pair of superposed and similar links pivotally secured at their inner ends to said OWEN R. HUGHES. `Witnesses GEO. H. LEH, ROBERT R. HUGHES.

five cents each, by addressing' the Commissionerof Patents, Washington, D. C. 

